It takes 4 minutes to boil a quantity of water ... - WAEC Physics 2009 Question
It takes 4 minutes to boil a quantity of water using an electrical heating coil. How long will it take to boil the same quantity of water using the same coil if the current is doubled? [Neglect any external heat losses]
A
8 minutes
B
4 minutes
C
2 minutes
D
1 minute
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Correct Option: C
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